subnet.im

AS17476CloudRadium (HK) Limited

Hong Kong SAR ChinaRegistryAPNICTypeContent

As of 10th November 2026, AS17476 (CloudRadium (HK) Limited), a content network registered in Hong Kong SAR China with APNIC, originates 10 IPv4 prefixes covering 2.6k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 23,457th-largest of the 80,733 networks we see originating IPv4, and the 319th-largest of 760 in Hong Kong SAR China. It is seen behind 20 upstream networks, most often AS2914 (NTT America, Inc.) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 38 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 92% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

10

IPv6 prefixes

2

IPv4 addresses

2.6k

IPv6 /64s

33.6M

Upstream graph

The networks AS17476 is seen behind, one and two hops out, drawn from real AS paths.

AS17476Toward the internet core
Upstream graph for AS17476: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS17476CloudRadium (HK) …This networkAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3257GTT Communication…AS3356Lumen (Level 3)AS6453TATA Communicatio…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS49544i3D.net B.VAS215859Hetzner Cloud - S…AS6667Elisa OyjAS398465Rackdog LLCAS8220COLT

Networks observed one and two hops upstream of AS17476 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

129

adjacent networks

Upstreams
2016%
Peers
7155%
Downstreams
3829%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS17476
NetworkCountryRelationshipPathsVantage pts
AS2914NTT America, Inc.USPeer13,093138
AS1299Arelion (fka. Telia Carrier)SEPeer12,255100
AS3257GTT Communications Inc.USPeer10,38375
AS6453TATA Communications (America) IncUSPeer6,79981
AS3356Lumen (Level 3)USPeer1,67763
AS6939Hurricane Electric LLCUSPeer1,6006
AS7713PT Telkom Indonesia TbkIDAdjacent1,4082
AS9002RETN LimitedGBPeer8714
AS49544i3D.net B.VNLPeer8372
AS58453China Mobile InternationalHKPeer80035

Prefixes

The largest blocks AS17476 originates, widest first.

Largest prefixes originated by AS17476
PrefixAddressesVisibility
178.107.43.0/2425676/76
178.107.44.0/242561/76
178.107.46.0/2425676/76
178.107.47.0/2425676/76
183.90.184.0/2425676/76
183.90.185.0/2425676/76
202.36.160.0/2425676/76
202.36.161.0/2425676/76
203.29.202.0/2425676/76
203.29.203.0/2425676/76

Routing health

How AS17476's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%12
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more91.7%11
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%8.3%1

Prefix sizes

IPv4 — 10 prefixes

IPv6 — 2 prefixes

  • /4016.8M × /64100.0%2

Recent changes

Announcements that started or stopped since 11th Oct 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.